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Skin Pass Mill for CR Strip Coil with Hydraulic System - China Suppliers & Factory

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MAIN FUNCTION OF EQUIPMENT

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The CR strip coil undergoes a flattening process with a small reduction rate, effectively reducing internal stress and elongating the yield point. This process ensures that during stretching and punching operations, no slip lines appear in the strip coil.

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After the annealing process, the CR coil strip is subjected to tempering, significantly enhancing both flatness and surface roughness of the strip.

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By adjusting the reduction rate during tempering, variations in the mechanical properties of the coil strip can be achieved, allowing for customizable hardness and plasticity to meet various functional requirements.

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COMPONENTS AND FEATURES OF THE EQUIPMENT
Our advanced system includes a Hydraulic coil car, Shear, Uncoiler, Front and back S roller, Clean brush roller, Skin pass (tempering mill), Anti-wrinkle roller, Recoiler, Auxiliary recoiler, Unloading car, Motor, Electric control, Hydraulic AGC system, and Hydraulic and lubrication devices.

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As a leading manufacturer in China, we take pride in being a trusted supplier for high-quality coil processing equipment. Our state-of-the-art factory is dedicated to providing efficient solutions tailored to your needs.

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    Technical Parameter Table
    Model / Technical Parameter 650 750 850 1000
    Material Normal carbon steel, stainless steel Normal carbon steel, stainless steel Normal carbon steel, stainless steel Normal carbon steel, stainless steel
    Material Thickness (mm) 0.16~1.5 0.3~0.8~1.5 0.3~0.8~1.5 0.3~1.5
    Material Width (mm) 550 650 750 900
    Elongation Rate (%) 0.2~3.0 0.2~3.0 0.2~3.0 0.2~3.0
    Line Speed (m/min) 180~300 180~300 180~400 240~600
    Tempering Mill Type 2 roll or 4 roll 2 roll or 4 roll 4 roll 4 roll
    Tempering Force (KN) 1450 1700 2000 2500
    Driving Method Working roll driving Working roll driving Working roll driving Working roll driving
    Hydraulic Station Pressure (MPa) 10 10 10 10
    Main Motor Z4 series (omit) Z4 series (omit) Z4 series (omit) Z4 series (omit)
    Uncoiler Motor Z4 series (omit) Z4 series (omit) Z4 series (omit) Z4 series (omit)
    Recoiler Motor Z4 series (omit) Z4 series (omit) Z4 series (omit) Z4 series (omit)
    S Roll Motor Z4 series (omit) Z4 series (omit) Z4 series (omit) Z4 series (omit)
    📌 Remark: The model and parameters shown in this table are for reference only. The design and production can be tailor-made according to user's requirements.
    Frequently Asked Questions (FAQ)
    🔹 What materials are compatible with these tempering mill models?
    All four models (650, 750, 850, and 1000) are compatible with both normal carbon steel and stainless steel, making them suitable for a wide range of industrial applications.
    🔹 What is the maximum line speed achievable with these machines?
    The Model 1000 offers the highest line speed, ranging from 240 to 600 m/min. The Model 850 supports up to 400 m/min, while Models 650 and 750 operate up to 300 m/min.
    🔹 What is the difference between the 2-roll and 4-roll tempering mill configurations?
    The 2-roll configuration is available for Models 650 and 750, offering a simpler setup suitable for lighter applications. The 4-roll configuration, available across all models, provides greater rigidity and precision, especially for higher tempering forces and thicker materials.
    🔹 Can the machine parameters be customized according to specific production requirements?
    Yes. All models can be tailor-made to meet specific user requirements. The specifications listed in the parameter table are for reference only, and both design and production can be adjusted accordingly.
    🔹 What type of motor is used for the main drive, uncoiler, recoiler, and S roll?
    All motors — including the main motor, uncoiler motor, recoiler motor, and S roll motor — across all four models use the Z4 series DC motors. Specific motor ratings are determined based on the customized configuration.
    🔹 What is the hydraulic station pressure used across these models?
    All models operate at a standard hydraulic station pressure of 10 MPa, ensuring consistent and reliable clamping force during the tempering process.